Influence of molecular weight of polymer matrix on the structure and rheological properties of graphene oxide/polydimethylsiloxane composites
文献类型：期刊论文
| 作者 | Niu, Ran1,2; Gong, Jiang1,2; Xu, Donghua1; Tang, Tao1; Sun, Zhao-Yan1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2014-10-09 |
| 卷号 | 55期号:21页码:5445-5453 |
| 关键词 | Graphene Oxide Polydimethylsiloxane Molecular Weight Of Polymer Matrix |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2014.08.056 |
| 英文摘要 | The structure and rheological properties of graphene oxide (GO)/polydimethylsiloxane (PDMS) composites are examined as the molecular weight of PDMS and concentration of GO are varied. Clusters formed by GO sheets get smaller and disperse better with increasing molecular weight of PDMS, which results in the higher critical concentration to form network (C-cr). Moreover, at GO concentration just above C-cr, the plateau modulus of samples decreases with the molecular weight of PDMS. During shear experiments, negative normal stress differences (Delta N) are observed in composites with PDMS molecular weight lower than critical entanglement molecular weight (M-c). However, positive Delta N is found in samples with PDMS molecular weight above M-c. It can be concluded that the vorticity alignment of GO clusters induces the negative Delta N based on the optical shear experiments. The possible mechanism for the positive Delta N is also proposed. (C) 2014 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000343377800017 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50001]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu, Donghua |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Ran,Gong, Jiang,Xu, Donghua,et al. Influence of molecular weight of polymer matrix on the structure and rheological properties of graphene oxide/polydimethylsiloxane composites[J]. POLYMER,2014,55(21):5445-5453. |
| APA | Niu, Ran,Gong, Jiang,Xu, Donghua,Tang, Tao,&Sun, Zhao-Yan.(2014).Influence of molecular weight of polymer matrix on the structure and rheological properties of graphene oxide/polydimethylsiloxane composites.POLYMER,55(21),5445-5453. |
| MLA | Niu, Ran,et al."Influence of molecular weight of polymer matrix on the structure and rheological properties of graphene oxide/polydimethylsiloxane composites".POLYMER 55.21(2014):5445-5453. |
入库方式： OAI收割
来源：化学研究所
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